Molecular evidence of RNA polymerase II gene reveals the origin of worldwide cultivated barley.

ABSTRACT: The origin and domestication of cultivated barley have long been under debate. A population-based resequencing and phylogenetic analysis of the single copy of RPB2 gene was used to address barley domestication, to explore genetic differentiation of barley populations on the worldwide scale, and to understand gene-pool exchanges during the spread and subsequent development of barley cultivation. Our results revealed significant genetic differentiation among three geographically distinct wild barley populations. Differences in haplotype composition among populations from different geographical regions revealed that modern cultivated barley originated from two major wild barley populations: one from the Near East Fertile Crescent and the other from the Tibetan Plateau, supporting polyphyletic

SUBMITTER: Wang Y 

PROVIDER: S-EPMC5081693 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature